Automatic lifting high jump rod for sports high jump

Abstract

The automatic lifting high jump rod for sports high jump comprises transmission shafts, driving bevel gears, driven bevel gears and a vertical lead screw, the transmission shafts are installed on the lower sides of the interiors of a left standing rod and a right standing rod, the driving bevel gears are arranged in the left standing rod and the right standing rod, and the driven bevel gears are meshed with the upper sides of the annular side faces of the driving bevel gears. Before sports high jump training is carried out, a user only needs to forward rotate the hand cranking discs on the left side and the right side, and then the transmission shaft can drive the vertical lead screw to rotate reversely through the driving bevel gear and the driven bevel gear; and in a similar way, when the hand cranking discs on the left side and the right side are reversely rotated, the left bearing seat and the right bearing seat can automatically move upwards, and in a similar way, when the hand cranking discs on the left side and the right side are reversely rotated, the left bearing seat and the right bearing seat can automatically move downwards, so that a user can conveniently adjust the using height of the left bearing seat and the using height of the right bearing seat.

Description

Technical Field

[0001] The utility model relates to the technical field of a high jump pole for sports high jump, in particular to an automatically lifting high jump pole for sports high jump. Background Art

[0002] High jump is one of the field events in track and field sports. It is a competition event that consists of a rhythmic run-up, a single-foot take-off, and landing on the ground after jumping over the horizontal bar. The result is calculated by the height above the upper edge of the horizontal bar. The high jump pole used in high jump is an important criterion for judging the performance of athletes, and the results are determined by different heights.

[0003] Publication No. "CN205964811U" provides a special high jump stand for physical education teaching. By adding a mounting block and a pin shaft, the cross bar is inserted into the mounting block and fixed by the pin shaft, and the mounting block is installed on the surface of the sliding block. This does not affect the height adjustment of the cross bar and can also fix the cross bar, thereby improving the stability of the cross bar connection, which not only saves training time but also avoids the injury of students to the falling of the cross bar. By adding a mounting groove and a support rod, the support rod is fixed in the mounting groove by a connecting rod, and a plurality of support rods are provided at the bottom of the high jump pole, which can support the high jump pole, thereby avoiding the collapse of the high jump stand due to the collision of students and improving the stability of the high jump stand.

[0004] However, the above technical solutions and the prior art have the following defects:

[0005] First of all, the steps for adjusting the height of the cross bar of the high jump stand are rather cumbersome, and it does not have the ability to automatically rise and fall, and the convenience of adjustment needs to be improved. Secondly, the bottom of the high jump stand cannot provide stable support for the high jump bar only through the support rod, and the support stability needs to be improved. In addition, the cross bar fixed inside the mounting block does not have the ability to fall independently, so once the trainees touch the cross bar, the entire high jump stand will topple over, which is not in line with the actual application scenario. Utility Model Content

[0006] The utility model aims to provide an automatic lifting high jump pole for sports high jump, so as to solve the problems raised in the above-mentioned background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] An automatically lifting high jump pole for sports high jumping comprises a right standing pole, a right supporting seat, a cross bar, a left standing pole and a left supporting seat, wherein the right standing pole is provided with a right supporting seat on the upper inner side, a cross bar is placed on the rear side of the upper end surface of the right supporting seat, a left standing pole is placed on the left side of the right standing pole, a left supporting seat is provided on the upper inner side of the left standing pole, lifting components are provided inside the left and right standing poles, and the lifting components are used to adjust the use height of the left and right supporting seats, and support components are provided at the bottom of the left and right standing poles, and the support components are used to improve the supporting stability of the left and right standing poles.

[0009] Preferably, the lifting assembly includes a transmission shaft, a driving bevel gear, a driven bevel gear, a vertical screw and a limit cavity. A transmission shaft is installed on the lower side of the left standing rod and the right standing rod, a driving bevel gear is arranged inside the left standing rod and the right standing rod, a driven bevel gear is meshed on the upper side of the annular side surface of the driving bevel gear, a vertical screw is arranged in the middle position of the upper end surface of the driven bevel gear, and a limit cavity is opened on the upper side of the left standing rod and the right standing rod.

[0010] Preferably, a limit plate is provided on the annular side surface of the transmission shaft, a hand-cranked plate is provided on the left end of the transmission shaft, and the limit through cavity is matched with the left supporting seat and the right supporting seat respectively.

[0011] Preferably, the support assembly includes a connecting seat, a support base, a water filling seat, a drainage seat and a water storage cavity. Support bases are placed at the bottom of the left standing rod and the right standing rod. A water filling seat is arranged on the left side of the upper end surface of the support base. A water storage cavity is opened inside the support base. A drainage seat is arranged on the lower side of the annular side surface of the support base. A connecting seat is arranged in the middle position of the upper end surface of the support base.

[0012] Preferably, a first sealing cover is installed on the upper end surface of the water filling seat, a first sealing sheet is arranged between the first sealing cover and the water filling seat, a second sealing cover is installed on the left end surface of the drain seat, and a second sealing sheet is arranged between the second sealing cover and the drain seat.

[0013] Preferably, the connecting seat and the supporting base are an integrated structure, an insertion cavity is opened inside the connecting seat, and the insertion cavity matches the bottom of the left standing rod and the right standing rod respectively, and a rubber anti-slip pad is bonded to the bottom of the supporting base.

[0014] Preferably, a locking screw is installed on the upper side of the hand crank, and the locking screw is a butterfly screw, and an annular blocking cover is installed on the left end surface of the left standing rod and the right end surface of the right standing rod.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. Before the practical sports high jump training, the user only needs to rotate the hand-cranked disks on the left and right sides respectively, so that the transmission shaft can drive the vertical screw rod to reverse through the active bevel gear and the driven bevel gear. At this time, the left support seat and the right support seat will automatically move upward. Similarly, when the hand-cranked disks on the left and right sides are reversed respectively, the left support seat and the right support seat will automatically move downward, so that the user can easily adjust the use height of the left support seat and the right support seat. In addition, since the cross bar is placed on the upper end surface of the left support seat and the right support seat, when the trainee touches the cross bar, the cross bar will only move and fall downward by itself, and will not cause the left standing bar and the right standing bar to fall together, so it meets the actual application scenario;

[0017] 2. In the present invention, by opening the first sealing cover and filling the water storage chamber with water through the water filling seat, the deadweight of the support base can be increased, thereby further improving the supporting stability of the support base, so that the support base can firmly support the left standing rod and the right standing rod respectively through the connecting seat, avoiding the left standing rod and the right standing rod from shaking or tilting easily during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 It is a structural diagram of the lifting assembly and the supporting assembly in the utility model;

[0020] Figure 3 It is a front cross-sectional view of the lifting assembly and the supporting assembly in the utility model;

[0021] Figure 4 It is a structural diagram of the lifting component in the utility model;

[0022] Figure 5 This is a structural diagram of the support assembly of the utility model after being disassembled;

[0023] Figure 6 This is a partial enlarged view of 3.

[0024] In the figure: 1. right standing rod; 2. lifting assembly; 21. hand crank; 22. transmission shaft; 23. active bevel gear; 24. driven bevel gear; 25. vertical screw; 26. limit through cavity; 27. limit plate; 28. locking screw; 29. ​​annular cover; 3. right supporting seat; 4. cross bar; 5. left standing rod; 6. left supporting seat; 7. supporting assembly; 71. connecting seat; 72. supporting base; 721. rubber anti-skid pad; 73. water filling seat; 731. first sealing cover; 732. first sealing plate; 74. drainage seat; 741. second sealing plate; 742. second sealing cover; 75. water storage cavity; 76. plug-in cavity. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-6 , the utility model provides a technical solution:

[0027] Embodiment 1:

[0028] An automatically lifting high jump pole for sports high jump comprises a right standing pole 1, a right supporting seat 3, a cross bar 4, a left standing pole 5 and a left supporting seat 6. The right supporting seat 3 is arranged on the upper side of the right standing pole 1, and the right supporting seat 3 will support the right half of the cross bar 4. The cross bar 4 is placed on the rear side of the upper end surface of the right supporting seat 3, and the cross bar 4 is convenient for athletes to perform high jump training. A left standing pole 5 is placed on the left side of the right standing pole 1. The left standing pole 5 has the same specifications as the right standing pole 1, and the left standing pole 5 will support the left supporting seat 6. A left supporting seat 6 is arranged on the upper side of the left standing pole 5, and the left supporting seat 6 has the same specifications as the right supporting seat 3, and the left supporting seat 6 will support the left half of the cross bar 4.

[0029] Lifting assemblies 2 are provided inside the left standing pole 5 and the right standing pole 1, and the lifting assemblies 2 are used to adjust the height of the left supporting seat 6 and the right supporting seat 3. Support assemblies 7 are provided at the bottom of the left standing pole 5 and the right standing pole 1, and the support assemblies 7 are used to improve the supporting stability of the left standing pole 5 and the right standing pole 1. Height scale lines are provided on the front and rear end surfaces of the left standing pole 5 and the right standing pole 1, and the height scale lines facilitate users to observe the height of the cross bar 4.

[0030] The lifting assembly 2 includes a transmission shaft 22, an active bevel gear 23, a driven bevel gear 24, a vertical screw rod 25 and a limit through cavity 26. The transmission shaft 22 is installed on the lower side of the left standing rod 5 and the right standing rod 1. The transmission shaft 22 is connected to the limit plate 27, the active bevel gear 23 and the hand crank 21 by welding. The transmission shaft 22 will drive the active bevel gear 23 to rotate. The left standing rod 5 and the right standing rod 1 are both provided with an active bevel gear 23. The active bevel gear 23 will drive the driven bevel gear 24 to rotate. The driven bevel gear 24 is meshed with the driven bevel gear 24 on the upper side of the annular side surface of the active bevel gear 23. The driven bevel gear 24 is connected to the vertical screw rod 25 by welding. The driven bevel gear 24 will drive the vertical screw rod 25 to rotate. The vertical screw rod 25 is provided in the middle position of the upper end surface of the driven bevel gear 24. The vertical screw rod 25 will drive the left supporting seat 6 and the right supporting seat 3 to automatically move up and down.

[0031] A limited through cavity 26 is provided on the upper inner side of the left standing rod 5 and the right standing rod 1, and the limited through cavity 26 matches the left supporting seat 6 and the right supporting seat 3 respectively. The limited through cavity 26 will limit and guide the left supporting seat 6 and the right supporting seat 3 to prevent the left supporting seat 6 and the right supporting seat 3 from deflecting or swinging during the lifting and lowering process. A limited disk 27 is provided on the annular side of the transmission shaft 22, and an annular blocking cover 29 is installed on the left end face of the left standing rod 5 and the right end face of the right standing rod 1. The limited disk 27 and the annular blocking cover 29 prevent the transmission shaft 22 from being displaced or shaking during the rotation and use. A hand crank 21 is provided at the left end, and the hand crank 21 is convenient for the user to rotate the transmission shaft 22 by hand. A locking screw 28 is installed on the upper side of the hand crank 21, and the locking screw 28 is a butterfly screw. The locking screw 28 of the butterfly screw can not only position the hand crank 21, but also facilitate the user to tighten or loosen it by hand. A vertical internal threaded through hole is opened in the middle position of the left support seat 6 and the right support seat 3, and the vertical internal threaded through hole is meshed with the vertical screw rod 25. The vertical internal threaded through hole enables the left support seat 6 and the right support seat 3 to have the ability to be raised and lowered.

[0032] Embodiment 2:

[0033] On the basis of the first embodiment, in this embodiment, by opening the first sealing cover 731 and filling the water storage chamber 75 with water through the water filling seat 73, the deadweight of the support base 72 can be increased, thereby further improving the supporting stability of the support base 72, so that the support base 72 can firmly support the left standing rod 5 and the right standing rod 1 respectively through the connecting seat 71, thereby preventing the left standing rod 5 and the right standing rod 1 from shaking or tilting easily during use.

[0034] The support assembly 7 includes a connecting seat 71, a support base 72, a water injection seat 73, a drainage seat 74 and a water storage chamber 75. The support base 72 is placed at the bottom of the left standing rod 5 and the right standing rod 1. The support base 72 will support the connecting seat 71. A water injection seat 73 is arranged on the left side of the upper end surface of the support base 72. The water injection seat 73 and the support base 72 are an integrated structure. The water injection seat 73 is convenient for users to inject water into the water storage chamber 75. The water storage chamber 75 is opened inside the support base 72. The water storage chamber 75 enables the support base 72 to have a water storage capacity, thereby further improving the self- The support base 72 is heavy, thereby making the support stability of the support base 72 better. A drainage seat 74 is provided on the lower side of the annular side of the support base 72. The drainage seat 74 and the support base 72 are an integrated structure. The drainage seat 74 is convenient for users to drain the water inside the water storage chamber 75, so as to carry and transfer the support base 72 more labor-saving. A connecting seat 71 is provided in the middle position of the upper end surface of the support base 72. The connecting seat 71 and the support base 72 are an integrated structure. The connecting seat 71 will limit the bottom of the left standing rod 5 and the right standing rod 1 to prevent the left standing rod 5 and the right standing rod 1 from shaking easily during use.

[0035] A first sealing cover 731 is installed on the upper end surface of the water injection seat 73, and the first sealing cover 731 is connected to the water injection seat 73 by a threaded connection. The first sealing cover 731 will seal the water injection seat 73, and a first sealing sheet 732 is arranged between the first sealing cover 731 and the water injection seat 73, and the first sealing sheet 732 makes the first sealing cover 731 and the water injection seat 73 more tightly sealed to avoid evaporation and loss of water in the water storage chamber 75, and a second sealing cover 742 is installed on the left end surface of the drain seat 74, and the second sealing cover 742 is connected to the drain seat 74 by a threaded connection. The second sealing cover 742 will seal the drain seat 74, and a second sealing sheet 741 is arranged between the second sealing cover 742 and the drain seat 74, and the second sealing sheet 741 makes the second sealing cover 742 and the drain seat 74 more tightly sealed to avoid leakage of water in the water storage chamber 75.

[0036] An insertion cavity 76 is provided inside the connecting seat 71, and the insertion cavity 76 matches the bottom of the left standing rod 5 and the right standing rod 1 respectively. The insertion cavity 76 facilitates the bottom of the left standing rod 5 and the right standing rod 1 to be inserted into the connecting seat 71. A rubber anti-skid pad 721 is bonded to the bottom of the support base 72. The rubber anti-skid pad 721 makes the bottom of the support base 72 more anti-skid. The support base 72, the connecting seat 71, the water injection seat 73 and the drainage seat 74 are all made of engineering plastics. The support base 72, the connecting seat 71, the water injection seat 73 and the drainage seat 74 are all made of engineering plastics. Not only are they light in weight, but they are also highly rigid, have low creep and high mechanical strength, which can prevent them from cracking easily during use.

[0037] Working principle: When conducting high jump training, this device is needed to determine the high jump results of athletes. The user first places the two groups of support bases 72 at the required positions on the training ground. At this time, the first sealing cover 731 is opened and the water storage chamber 75 is filled with water through the water filling seat 73, thereby increasing the deadweight of the support base 72, thereby further improving the supporting stability of the support base 72. After filling with water, the first sealing cover 731 is installed on the upper end surface of the water filling seat 73, and then the left standing rod 5 and the right standing rod 1 are respectively inserted from top to bottom into the internal insertion chamber 76 of the two groups of connecting seats 71, so that the two groups of support bases 72 can firmly support the left standing rod 5 and the right standing rod 1 through the connecting seat 71, so as to prevent the left standing rod 5 and the right standing rod 1 from easily shaking or tilting during use; then the user only needs to rotate the hand crank disk 21 on the left and right sides respectively, so that the transmission shaft 22 can drive the active bevel gear 23 to rotate forward together, and the active bevel gear 23 will drive the driven bevel gear 24 When the user reverses the hand-cranked disk 21 on the left and right sides respectively, the left and right support seats 6 and the right support seats 3 will automatically move downwards, so that the user can adjust the height of the left and right support seats 6 and the right support seats 3. In this process, the user only needs to observe the height scale line to quickly know the height of the left and right support seats 6 and the right support seats 3. When the heights of the left and right support seats 6 and the right support seats 3 are adjusted to the same required position, the locking screw 28 can be tightened so that the locking screw 28 can position the hand-cranked disk 21 to prevent the vertical screw rod 25 from rotating again, thereby ensuring the supporting stability of the left and right support seats 6 and the right support seats 3. At this time, the cross bar 4 can be placed on the front or rear side of the upper end of the left and right support seats 6 and the right support seats 3 for high jump training.

[0038] When the high jump training is over, the user first removes the horizontal bar 4, and then lifts the left standing bar 5 and the right standing bar 1 respectively to separate them from the connecting seat 71, so as to disassemble the left standing bar 5 and the right standing bar 1 separately, and then opens the second sealing cover 742, so that the water in the water storage chamber 75 can be discharged to the outside through the drainage seat 74, so as to reduce the dead weight of the support base 72. When all the water in the water storage chamber 75 is drained, the support base 72 can be taken and transferred.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatically lifting high jump pole for sports high jump, comprising a right standing pole (1), a right supporting seat (3), a cross bar (4), a left standing pole (5) and a left supporting seat (6), characterized in that: A right supporting seat (3) is arranged on the upper inner side of the right standing rod (1), a cross bar (4) is placed on the rear side of the upper end surface of the right supporting seat (3), a left standing rod (5) is placed on the left side of the right standing rod (1), and a left supporting seat (6) is arranged on the upper inner side of the left standing rod (5); The left standing rod (5) and the right standing rod (1) are both provided with a lifting assembly (2) inside, and the lifting assembly (2) is used to adjust the height of the left supporting seat (6) and the right supporting seat (3); the bottom of the left standing rod (5) and the right standing rod (1) are both provided with a supporting assembly (7), and the supporting assembly (7) is used to improve the supporting stability of the left standing rod (5) and the right standing rod (1); The lifting assembly (2) comprises a transmission shaft (22), a driving bevel gear (23), a driven bevel gear (24), a vertical screw rod (25) and a position limiting cavity (26); the transmission shaft (22) is installed on the lower side of the left standing rod (5) and the right standing rod (1); the driving bevel gear (23) is arranged inside the left standing rod (5) and the right standing rod (1); the driven bevel gear (24) is meshed on the upper side of the annular side surface of the driving bevel gear (23); the vertical screw rod (25) is arranged at the middle position of the upper end surface of the driven bevel gear (24); and the position limiting cavity (26) is provided on the upper side of the left standing rod (5) and the right standing rod (1); A limiting plate (27) is arranged on the annular side surface of the transmission shaft (22), a hand-cranked plate (21) is arranged on the left end of the transmission shaft (22), and the limiting through cavity (26) is matched with the left supporting seat (6) and the right supporting seat (3) respectively; The support assembly (7) comprises a connecting seat (71), a supporting base (72), a water injection seat (73), a drainage seat (74) and a water storage chamber (75); the supporting base (72) is placed at the bottom of the left standing rod (5) and the right standing rod (1); a water injection seat (73) is arranged on the left side of the upper end surface of the supporting base (72); a water storage chamber (75) is provided inside the supporting base (72); a drainage seat (74) is arranged on the lower side of the annular side surface of the supporting base (72); and a connecting seat (71) is arranged at the middle position of the upper end surface of the supporting base (72); A first sealing cover (731) is installed on the upper end surface of the water filling seat (73), and a first sealing sheet (732) is arranged between the first sealing cover (731) and the water filling seat (73). A second sealing cover (742) is installed on the left end surface of the drainage seat (74), and a second sealing sheet (741) is arranged between the second sealing cover (742) and the drainage seat (74).

2. The automatic lifting high jump pole for sports high jump according to claim 1, characterized in that: The connecting seat (71) and the supporting base (72) are an integrated structure. An inserting cavity (76) is provided inside the connecting seat (71), and the inserting cavity (76) matches the bottom of the left standing rod (5) and the bottom of the right standing rod (1) respectively. A rubber anti-slip pad (721) is bonded to the bottom of the supporting base (72).

3. The automatic lifting high jump pole for sports high jump according to claim 1, characterized in that: A locking screw (28) is installed on the upper side of the hand-cranked plate (21), and the locking screw (28) is a butterfly screw. The left end surface of the left standing rod (5) and the right end surface of the right standing rod (1) are both installed with an annular blocking cover (29).

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